Electrode sheet and battery cell
US-2024039033-A1 · Feb 1, 2024 · US
Current collector for bipolar battery, and bipolar battery
US2025391883A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025391883-A1 |
| Application number | US-202519047063-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 6, 2025 |
| Priority date | Jun 21, 2024 |
| Publication date | Dec 25, 2025 |
| Grant date | — |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
In the current collector for a bipolar battery of the present disclosure, the first current collector and the second current collector are bonded to each other via a conductive adhesive layer, and the first current collector and the second current collector have a weld portion and are welded to each other over a peripheral portion of the current collector for a bipolar battery, whereby the conductive adhesive layer is sealed. The bipolar battery of the present disclosure includes an anode active material layer, a current collector for a bipolar battery of the present disclosure, and a cathode active material layer in this order.
First claim
Opening claim text (preview).
What is claimed is: 1 . A current collector for a bipolar battery, wherein a first current collector and a second current collector are bonded to each other via a conductive adhesive layer, and a weld portion, in which the first current collector and the second current collector are welded to each other, is provided over a peripheral portion of the current collector for a bipolar battery, by which the conductive adhesive layer is sealed. 2 . The current collector according to claim 1 , wherein the conductive adhesive layer includes a water-based adhesive. 3 . The current collector according to claim 1 , wherein a width of the weld portion is no less than 1 mm and no more than 10 mm. 4 . The current collector according to claim 1 , further comprising a sealing member that seals the weld portion. 5 . A bipolar battery comprising: an anode active material layer; the current collector according to claim 1 ; and a cathode active material layer that are provided in an order of the anode active material layer, the current collector, and the cathode active material layer.
Assignees
Inventors
Classifications
Organic material · CPC title
Bipolar electrodes · CPC title
- H01M4/667Primary
in the form of layers, e.g. coatings · CPC title
Manufacturing or production processes characterised by the final manufactured product · CPC title
Energy storage using batteries · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2025391883A1 cover?
- In the current collector for a bipolar battery of the present disclosure, the first current collector and the second current collector are bonded to each other via a conductive adhesive layer, and the first current collector and the second current collector have a weld portion and are welded to each other over a peripheral portion of the current collector for a bipolar battery, whereby the cond…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/667. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 25 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).